1 /*

     2 * Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). 

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  

    15 *

    16 */

    17 

    18 

    19 

    20 #ifndef CAM_PERFORMANCELOGGER_H

    21 #define CAM_PERFORMANCELOGGER_H

    22 

    23 

    24 #include "camcameracontrollerflags.hrh"

    25 

    26 

    27 #ifdef CAMERAAPP_PERFORMANCE_CONTROLLER

    28 // ===========================================================================

    29 _LIT( KCamPerformanceItemFormat, "%s duration: %d \n");

    30 

    31 class TCamPerformanceItem

    32   {

    33   public:

    34     TCamPerformanceItem( TCamCameraRequestId aId )

    35       : iId( aId ), iStart( Time64() ), iStop( iStart ) {};

    36 

    37     TCamPerformanceItem( const TCamPerformanceItem& aOther )

    38       : iId( aOther.iId ), iStart( aOther.iStart ), iStop( aOther.iStop ) {};

    39 

    40     void Start() { iStart = Time64(); iStop = iStart; };

    41     void Stop()  { iStop  = Time64();                 };

    42   

    43     TInt64 Time64() const

    44       {

    45       TTime time;

    46       time.HomeTime();

    47       return time.Int64();

    48       };

    49 

    50     TInt Duration() const

    51       {

    52       return (TInt)(iStop - iStart);

    53       };

    54 

    55     const TCamCameraRequestId iId;

    56     TInt64                    iStart;

    57     TInt64                    iStop;

    58   };

    59 

    60 

    61 

    62 

    63 class CCamPerformanceLogger : public CBase

    64   {

    65   public:

    66     CCamPerformanceLogger() {};

    67     ~CCamPerformanceLogger() 

    68       { 

    69       iData.Reset();

    70       iData.Close(); 

    71       };

    72   

    73     void Requested( const TCamCameraRequestId& aRequest )

    74       {

    75       TInt error = iData.Append( TCamPerformanceItem( aRequest ) );

    76 

    77       if( KErrNone != error )

    78         {

    79         // Ignored

    80         }

    81       };

    82 

    83     void Completed( const TCamCameraRequestId& aRequest )

    84       {

    85       // Set the end time for last performance item

    86       // found with this id.

    87       for( TInt i = iData.Count() - 1; i >= 0; i-- )

    88         {

    89         if( aRequest == iData[i].iId )

    90           {

    91           iData[i].Stop();

    92           return;

    93           }          

    94         }

    95       /// Ignore error if not found

    96       };

    97 

    98     TInt InfoSizeEstimate() const

    99       {

   100       return 50 * iData.Count();

   101       }

   102 

   103     void InfoText( TDes& aDes ) const

   104       {

   105       TInt count = iData.Count();

   106       for( TInt i = 0; i < count; i++ )

   107         {

   108         const TCamPerformanceItem& item = iData[i];

   109         // ECamRequestNone used to mark sequence start and end.

   110         if( item.iId >= ECamRequestNone && item.iId < ECamRequestLast )

   111           {

   112           aDes.AppendFormat( KCamPerformanceItemFormat, KCamRequestNames[item.iId], item.Duration() );

   113           }

   114         } 

   115       }

   116 

   117   private:

   118     RArray<TCamPerformanceItem> iData;

   119   };

   120 // ===========================================================================

   121 #endif // CAMERAAPP_PERFORMANCE_CONTROLLER

   122 

   123 #endif // CAM_PERFORMANCELOGGER_H